Row ranks – Akash is 5th from the left and 25th from the right. Nikhil is 11th from the right. How many boys are seated between Akash and Nikhil?

Introduction / Context:Convert mixed left/right ranks into a total count and absolute positions, then compute the number of people in between.

Given Data / Assumptions:

• Akash: 5th from left, 25th from right.
• Nikhil: 11th from right.

Concept / Approach:Total N = L + R - 1 for the same person. Then convert Nikhil’s right rank to a left position; finally, compute the gap between left positions minus one.

Step-by-Step Solution:Akash total: N = 5 + 25 - 1 = 29.Nikhil from left = N - 11 + 1 = 29 - 11 + 1 = 19.Gap between positions 5 and 19 = 19 - 5 - 1 = 13.

Verification / Alternative check:Counting from either side yields consistent totals; symmetrical ranks agree with N = 29.

Why Other Options Are Wrong:12/14/15 are off by one relative to the correct difference and the “exclude endpoints” rule.

Common Pitfalls:Forgetting the “-1” in N = L + R - 1; or forgetting to subtract one when counting those in between.

Final Answer:13